Adds selection expansion support for Contextual Search.

content/browser/web_contents/web_contents_android.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "content/browser/web_contents/web_contents_android.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "base/command_line.h"
@@ skipping 357 matching lines @@
       host->GetRoutingID(), gfx::Rect()));
 }
 
 void WebContentsAndroid::SelectWordAroundCaret(JNIEnv* env, jobject obj) {
   RenderViewHost* host = web_contents_->GetRenderViewHost();
   if (!host)
     return;
   host->SelectWordAroundCaret();
 }
 
+void WebContentsAndroid::MoveSelectionByCharacterOffset(JNIEnv* env,
+                                                        jobject obj,
+                                                        jint start_adjust,
+                                                        jint end_adjust) {
+  RenderViewHost* host = web_contents_->GetRenderViewHost();
+  if (!host)
+    return;
+  host->MoveSelectionByCharacterOffset(start_adjust, end_adjust);
+}
+
 void WebContentsAndroid::EvaluateJavaScript(JNIEnv* env,
                                             jobject obj,
                                             jstring script,
                                             jobject callback) {
   RenderViewHost* rvh = web_contents_->GetRenderViewHost();
   DCHECK(rvh);
 
   if (!rvh->IsRenderViewLive()) {
     if (!static_cast<WebContentsImpl*>(web_contents_)->
         CreateRenderViewForInitialEmptyDocument()) {
@@ skipping 54 matching lines @@
   ContentViewCoreImpl* contentViewCore =
       ContentViewCoreImpl::FromWebContents(web_contents_);
   WebContentsImpl::AXTreeSnapshotCallback snapshot_callback =
       base::Bind(&AXTreeSnapshotCallback, j_callback,
           contentViewCore->GetScaleFactor());
   static_cast<WebContentsImpl*>(web_contents_)->RequestAXTreeSnapshot(
       snapshot_callback);
 }
 
 }  // namespace content